Wagon-unloading mechanism



No. 752,519. l PATENTE-D FEB.) 16,1904. M. O. CLARK. WAGONNUNLOADINGMBGHANISM.

No MODEL. APPLIGATION FILED JULY 11, 1903. 4 SHEETSH-ETL :mm oi.

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"NL 752,519. PATENTED PEB. 16, 1904.V

` M. o. CLARK. WAGON UNLGADING MEGHANISM.

VAPPLIGATOH FILED JULY 11.1903.

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No. 752.519.` PATENTBD PEB. 16,1904. M. o. CLARK. WAGON UNLOADINGMEGHANISM.

APPLIoATIN FILED JULY n. 1903. 4 SHEETS-SHEET 3.

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No. 752,519. PATENTED FEB. 16., 1904'.

' M. 0. CLARK.

WAGON UNLOADING MBGHANISM.

APPLICATION FILED JULY 11. 1903. v

4 SHEETS-SHEET 4.

UNITED ,OS2-Pannes' Patented February 16,V 1904.

vPATENT OFFICE.

MURRELL O. CLARK, OF VERONA, MISSISSIPPI. i

. WAGOrN-UNLOADIANG NIECHANISNI.

i SPECIFICATION forming part of Letters Patent No. 752,519, datedFebruary 16, 1904.

Application filed July 11, 1903. Serial N- 165,131. (No model.)

To all whom, it may concern:

Be it known that I, MURRELL O. CLARK, a citizen ofthe United States,residing at Verona, in the county of Lee and-State of Mississippi, haveinvented new and useful Improvements in IlVagon-Unloading Mechanism, ofwhich thefollowing is a specification.

My invention relates to neveT and useful improvements in mechanism forunloading Wagons; and its object is to provide apparatus which can bereadily installedv within a barn or other structure and whereby oneperson can', with the assistance of the horses belonging to the Vehicle,unload material from the wagon, convey it to a desired point within'vthe barn, deposit it, and return the wagon-body to its initialposition.-

A further object is to provide means for readily securing a wagon-bodyto the un- Another object is to employ novel means for suspending thewagon-body during its transportation within the barn.

Further objects are to provide means for automatically dumping thewagon-body and for raising it to a horizontal position prior to itsreturn to its normal position upon the running-gear of the vehicle. y

With the above and other objects in view the invention consists in thenovel construction and combination of parts hereinafter more fullydescribed and claimed, and illustrated in the accompanying drawings,showing the preferred form of my invention, and in which-` Figure 1 isan end elevation of the apparatus within a barn. Fig. 2 is a plan viewthereof. Fig. 3 is a longitudinal section on line 3 3, Fig. 1, andshowing the positions of the parts prior to hoisting a Wagon-body. Fig.4 is a side elevation of a wagon-body snspended from one of thecarriages of the apparatus, and Fig. 5 is a bottom plan view of aportion of the wagon-body-engaging `mechanism and showing in dottedlines position the holding-bar may assume.

Referring tol the figures by numerals of` reference, l 1 are the joistsof a barn or other structure 2, and these joists are cut awaylongitudinally, as shown at 3, to permit strips 4 ers 7, journaled atthe sides vof a frame 8, constructed of suitably-arranged beams andforming a car. Two pair of grooved rollers 9 are also mounted betweenthe tracks 6 and are arranged to thesides of asecond car 10. Journaledin this car near each corner is a pulley 11, and over each pulleyextends a cable 12, which' is also mounted on a pulley 13, arranged nearone corner of the car 8. These cables may be fastened to the car 8 inany desired manner. To the lower ends of the cables 12 is fastened apreferably rectangular frame 14, having forked ears 15 at one endthereof, in which are pivoted rods 16. A rod 17 is arranged under andlongitudinally of theop'posite end of the frame 14, and the ends of thisrod are fastened to L-shaped arms 18,l pivoted to the sides ofthe frameand extending laterally therefrom. Loops 19 are arranged at the centersof the sides of frame 14 and are adapted to come in contact with andautomat-- ically engage hooks 20, pivoted to the sides of car 10 andhaving arms 21 projecting upwardly therefrom. v l

The rods 16 are adjustably secured in sleeves 22, arranged on a rod 23,and loosely mounted on this rod are sleeves 24, having hooked rodsadjustably fastened therein. Sleeves 26 are also loosely arranged on therod 23 and have forked ears 27, in which are pivoted holding-bars 28.Into these bars project and are adjustably secured strips 29, havingcamshaped heads 30, forming hooks .31, which normally engage the rod 17.

Trips 32 are adjustably secured to the tracks 6 in any suitable mannerand project into the paths of the arms18. Stops 33 are'arranged uponthe`inner'faces' of the tracks and project into the paths of thearms'21' of hooks 20. These stops are preferablyarranged directly abovea point to which wagons to be unloaded are brought.J Pulleys 34 arelocated at diiferent points in the structure 2, and arranged upon themis a cable 35, which is fasunder the ends of the wagon-body 39 and the'hooks 31 placed in engagement with the rod 17 Rods 251 are hooked to thewagon-body 39 and locked in sleeves 24 by set-screws 40 or othersuitable devices. Hook 38 is secured to the side of the body 39. Thehorse or horses of the wagon or a special team provided for the purposeis then hitched to the cable 35 and driven forward. Longitudinalmovement of the car 8 will thus be produced, and the cables 12 fastenedthereto will draw upward the frame 14 and the wagon-body 39 connectedthereto. The carriage 10 is held against longitudinal movement duringthe hoisting of the frame 14 and the wagon-body by one or more personsgrasping the cable 36 and drawing downward thereupon. The loops 19 will,as is obvious, automatically engage hooks20. When the frame 14 reachesthe limit of its upward movement, car 10 is drawn forward after car 8until arms 18 come into contact with the trips 32. These trips willcause the arms to swing rod 17 from under hooks 31, and strips 29 andbars 28 will therefore swing downward and carry the body 39 therewith.This body is prevented from becoming displaced by the rods 25. Thematerial carried by the wagon-body will thus be discharged. The horsescan then -be attached to cable 36v and when driven forward will firstdraw ythe bars 28 and strip 29 upward, causing the hooks 31 to rengagethe rod 17. The two carriages 8 and 10 are then drawn backward until thearms 21 contact with stops 33, when hooks 20 will be automaticallyremoved from loops 19, and the wagon-body 39 and its holding-frame canthen be lowered into properposition. Any suitable supporting means maybe substituted for the hooks 20, and I do not desire to be understood aslimiting myself to the specific construction and arrangement describedand shown. It will be seen that the apparatus is very simple andeffective and by its use, one person can, unassisted, unload wagons atdesired points.

In the foregoing description I have shown the preferred form of myinvention; but I do not limit myself thereto, as I am aware thatmodifications may be made therein without departing from the spirit orsacrificing any of the advantages thereof, and I therefore reserve theright to make such changes as fairly fall within the scope of myinvention.

Having thus described the invention, what is claimed as newvis- 1. In awagon unloading apparatus, the combination with a track, a car thereon,and means for propelling the car; of a second car upon the track, cablesloosely mounted on said car and secured to the first-mentioned car, aframe secured to the cables, wagon-body-supporting means pivotallyconnected thereto, and means for locking the same in supportingposition.

2. In a wagon unloading apparatus, the combination with a track, a carthereon, and means for propelling the car; of a second car upon thetrack, cables loosely mounted on said car and secured to thefirst-mentioned car, a frame secured to the cables, a rod connectedthereto, wagon-body-supporting bars pivoted on the rod, and means forlocking the bars in supporting position.

3. In a wagon unloading apparatus, the combination with a track, a carthereon, and means for propelling the car; of a second car upon thetrack, cables loosely mounted on said car and secured to thefirst-mentioned car, a frame secured to the cables, a rod connectedthereto, wagon-body-supporting bars pivoted to the rod, hooked stripsconnected to the bars, and a movable rod upon the frame and normallyengaged by the hooked strips.

4. In a wagon-unloading apparatus, the combination with a track, a carthereon, and

means for propelling the car; of a second car upon the track, cablesloosely mounted on said car and secured to the first-mentioned car, aframesecured to the cables, a rod connected thereto,wagon-body-supporting bars pivoted to the rod, hooked strips extendingfrom the bars, arms pivoted to the frame, a rod connecting said arms andnormally engaged by the hooked strips, and means for automaticallyreleasing the rod from the strips. Y

5. In a wagon-unloading apparatus, the combination with a track, a carthereon, and means for propelling the car; of a second car upon thetrack, cables loosely mounted on said car and secured to thefirst-mentioned car, a frame secured to the cables, a rod suspendedtherefrom, wagon-body-supporting bars pivotally connected to the rod,hooked wagonbody-engaging rods adjustably secured to the said rod,hooked strips extending from the bars, arms pivoted to the frame, a rodconnecting the arms and normally engaged by the hooked strips, and meansfor automatically releasing the rod from said strips.

In testimony whereof I affix my signature in presence of two witnesses.

MURRELL O. CLARK.

Witnesses:

D. H. CLARK, JNO. S. COBB.

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